require "cases/helper" require "models/minimalistic" require "models/developer" require "models/auto_id" require "models/boolean" require "models/computer" require "models/topic" require "models/company" require "models/category" require "models/reply" require "models/contact" require "models/keyboard" class AttributeMethodsTest < ActiveRecord::TestCase include InTimeZone fixtures :topics, :developers, :companies, :computers def setup @old_matchers = ActiveRecord::Base.send(:attribute_method_matchers).dup @target = Class.new(ActiveRecord::Base) @target.table_name = "topics" end teardown do ActiveRecord::Base.send(:attribute_method_matchers).clear ActiveRecord::Base.send(:attribute_method_matchers).concat(@old_matchers) end test "attribute_for_inspect with a string" do t = topics(:first) t.title = "The First Topic Now Has A Title With\nNewlines And More Than 50 Characters" assert_equal '"The First Topic Now Has A Title With\nNewlines And ..."', t.attribute_for_inspect(:title) end test "attribute_for_inspect with a date" do t = topics(:first) assert_equal %("#{t.written_on.to_s(:db)}"), t.attribute_for_inspect(:written_on) end test "attribute_for_inspect with an array" do t = topics(:first) t.content = [Object.new] assert_match %r(\[#\]), t.attribute_for_inspect(:content) end test "attribute_for_inspect with a long array" do t = topics(:first) t.content = (1..11).to_a assert_equal "[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]", t.attribute_for_inspect(:content) end test "attribute_present" do t = Topic.new t.title = "hello there!" t.written_on = Time.now t.author_name = "" assert t.attribute_present?("title") assert t.attribute_present?("written_on") assert !t.attribute_present?("content") assert !t.attribute_present?("author_name") end test "attribute_present with booleans" do b1 = Boolean.new b1.value = false assert b1.attribute_present?(:value) b2 = Boolean.new b2.value = true assert b2.attribute_present?(:value) b3 = Boolean.new assert !b3.attribute_present?(:value) b4 = Boolean.new b4.value = false b4.save! assert Boolean.find(b4.id).attribute_present?(:value) end test "caching a nil primary key" do klass = Class.new(Minimalistic) assert_called(klass, :reset_primary_key, returns: nil) do 2.times { klass.primary_key } end end test "attribute keys on a new instance" do t = Topic.new assert_equal nil, t.title, "The topics table has a title column, so it should be nil" assert_raise(NoMethodError) { t.title2 } end test "boolean attributes" do assert !Topic.find(1).approved? assert Topic.find(2).approved? end test "set attributes" do topic = Topic.find(1) topic.attributes = { title: "Budget", author_name: "Jason" } topic.save assert_equal("Budget", topic.title) assert_equal("Jason", topic.author_name) assert_equal(topics(:first).author_email_address, Topic.find(1).author_email_address) end test "set attributes without a hash" do topic = Topic.new assert_raise(ArgumentError) { topic.attributes = "" } end test "integers as nil" do test = AutoId.create(value: "") assert_nil AutoId.find(test.id).value end test "set attributes with a block" do topic = Topic.new do |t| t.title = "Budget" t.author_name = "Jason" end assert_equal("Budget", topic.title) assert_equal("Jason", topic.author_name) end test "respond_to?" do topic = Topic.find(1) assert_respond_to topic, "title" assert_respond_to topic, "title?" assert_respond_to topic, "title=" assert_respond_to topic, :title assert_respond_to topic, :title? assert_respond_to topic, :title= assert_respond_to topic, "author_name" assert_respond_to topic, "attribute_names" assert !topic.respond_to?("nothingness") assert !topic.respond_to?(:nothingness) end test "respond_to? with a custom primary key" do keyboard = Keyboard.create assert_not_nil keyboard.key_number assert_equal keyboard.key_number, keyboard.id assert keyboard.respond_to?("key_number") assert keyboard.respond_to?("id") end test "id_before_type_cast with a custom primary key" do keyboard = Keyboard.create keyboard.key_number = "10" assert_equal "10", keyboard.id_before_type_cast assert_equal nil, keyboard.read_attribute_before_type_cast("id") assert_equal "10", keyboard.read_attribute_before_type_cast("key_number") assert_equal "10", keyboard.read_attribute_before_type_cast(:key_number) end # Syck calls respond_to? before actually calling initialize. test "respond_to? with an allocated object" do klass = Class.new(ActiveRecord::Base) do self.table_name = "topics" end topic = klass.allocate assert !topic.respond_to?("nothingness") assert !topic.respond_to?(:nothingness) assert_respond_to topic, "title" assert_respond_to topic, :title end # IRB inspects the return value of MyModel.allocate. test "allocated objects can be inspected" do topic = Topic.allocate assert_equal "#", topic.inspect end test "array content" do content = %w( one two three ) topic = Topic.new topic.content = content topic.save assert_equal content, Topic.find(topic.id).content end test "read attributes_before_type_cast" do category = Category.new(name: "Test category", type: nil) category_attrs = { "name" => "Test category", "id" => nil, "type" => nil, "categorizations_count" => nil } assert_equal category_attrs, category.attributes_before_type_cast end if current_adapter?(:Mysql2Adapter) test "read attributes_before_type_cast on a boolean" do bool = Boolean.create!("value" => false) if RUBY_PLATFORM.include?("java") # JRuby will return the value before typecast as string. assert_equal "0", bool.reload.attributes_before_type_cast["value"] else assert_equal 0, bool.reload.attributes_before_type_cast["value"] end end end test "read attributes_before_type_cast on a datetime" do in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = "345643456" assert_equal "345643456", record.written_on_before_type_cast assert_equal nil, record.written_on record.written_on = "2009-10-11 12:13:14" assert_equal "2009-10-11 12:13:14", record.written_on_before_type_cast assert_equal Time.zone.parse("2009-10-11 12:13:14"), record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone end end test "read attributes_after_type_cast on a date" do tz = "Pacific Time (US & Canada)" in_time_zone tz do record = @target.new date_string = "2011-03-24" time = Time.zone.parse date_string record.written_on = date_string assert_equal date_string, record.written_on_before_type_cast assert_equal time, record.written_on assert_equal ActiveSupport::TimeZone[tz], record.written_on.time_zone record.save record.reload assert_equal time, record.written_on end end test "hash content" do topic = Topic.new topic.content = { "one" => 1, "two" => 2 } topic.save assert_equal 2, Topic.find(topic.id).content["two"] topic.content_will_change! topic.content["three"] = 3 topic.save assert_equal 3, Topic.find(topic.id).content["three"] end test "update array content" do topic = Topic.new topic.content = %w( one two three ) topic.content.push "four" assert_equal(%w( one two three four ), topic.content) topic.save topic = Topic.find(topic.id) topic.content << "five" assert_equal(%w( one two three four five ), topic.content) end test "case-sensitive attributes hash" do # DB2 is not case-sensitive. return true if current_adapter?(:DB2Adapter) assert_equal @loaded_fixtures["computers"]["workstation"].to_hash, Computer.first.attributes end test "attributes without primary key" do klass = Class.new(ActiveRecord::Base) do self.table_name = "developers_projects" end assert_equal klass.column_names, klass.new.attributes.keys assert_not klass.new.has_attribute?("id") end test "hashes are not mangled" do new_topic = { title: "New Topic" } new_topic_values = { title: "AnotherTopic" } topic = Topic.new(new_topic) assert_equal new_topic[:title], topic.title topic.attributes= new_topic_values assert_equal new_topic_values[:title], topic.title end test "create through factory" do topic = Topic.create(title: "New Topic") topicReloaded = Topic.find(topic.id) assert_equal(topic, topicReloaded) end test "write_attribute" do topic = Topic.new topic.send(:write_attribute, :title, "Still another topic") assert_equal "Still another topic", topic.title topic[:title] = "Still another topic: part 2" assert_equal "Still another topic: part 2", topic.title topic.send(:write_attribute, "title", "Still another topic: part 3") assert_equal "Still another topic: part 3", topic.title topic["title"] = "Still another topic: part 4" assert_equal "Still another topic: part 4", topic.title end test "read_attribute" do topic = Topic.new topic.title = "Don't change the topic" assert_equal "Don't change the topic", topic.read_attribute("title") assert_equal "Don't change the topic", topic["title"] assert_equal "Don't change the topic", topic.read_attribute(:title) assert_equal "Don't change the topic", topic[:title] end test "read_attribute raises ActiveModel::MissingAttributeError when the attribute does not exist" do computer = Computer.select("id").first assert_raises(ActiveModel::MissingAttributeError) { computer[:developer] } assert_raises(ActiveModel::MissingAttributeError) { computer[:extendedWarranty] } assert_raises(ActiveModel::MissingAttributeError) { computer[:no_column_exists] = "Hello!" } assert_nothing_raised { computer[:developer] = "Hello!" } end test "read_attribute when false" do topic = topics(:first) topic.approved = false assert !topic.approved?, "approved should be false" topic.approved = "false" assert !topic.approved?, "approved should be false" end test "read_attribute when true" do topic = topics(:first) topic.approved = true assert topic.approved?, "approved should be true" topic.approved = "true" assert topic.approved?, "approved should be true" end test "boolean attributes writing and reading" do topic = Topic.new topic.approved = "false" assert !topic.approved?, "approved should be false" topic.approved = "false" assert !topic.approved?, "approved should be false" topic.approved = "true" assert topic.approved?, "approved should be true" topic.approved = "true" assert topic.approved?, "approved should be true" end test "overridden write_attribute" do topic = Topic.new def topic.write_attribute(attr_name, value) super(attr_name, value.downcase) end topic.send(:write_attribute, :title, "Yet another topic") assert_equal "yet another topic", topic.title topic[:title] = "Yet another topic: part 2" assert_equal "yet another topic: part 2", topic.title topic.send(:write_attribute, "title", "Yet another topic: part 3") assert_equal "yet another topic: part 3", topic.title topic["title"] = "Yet another topic: part 4" assert_equal "yet another topic: part 4", topic.title end test "overridden read_attribute" do topic = Topic.new topic.title = "Stop changing the topic" def topic.read_attribute(attr_name) super(attr_name).upcase end assert_equal "STOP CHANGING THE TOPIC", topic.read_attribute("title") assert_equal "STOP CHANGING THE TOPIC", topic["title"] assert_equal "STOP CHANGING THE TOPIC", topic.read_attribute(:title) assert_equal "STOP CHANGING THE TOPIC", topic[:title] end test "read overridden attribute" do topic = Topic.new(title: "a") def topic.title() "b" end assert_equal "a", topic[:title] end test "string attribute predicate" do [nil, "", " "].each do |value| assert_equal false, Topic.new(author_name: value).author_name? end assert_equal true, Topic.new(author_name: "Name").author_name? end test "number attribute predicate" do [nil, 0, "0"].each do |value| assert_equal false, Developer.new(salary: value).salary? end assert_equal true, Developer.new(salary: 1).salary? assert_equal true, Developer.new(salary: "1").salary? end test "boolean attribute predicate" do [nil, "", false, "false", "f", 0].each do |value| assert_equal false, Topic.new(approved: value).approved? end [true, "true", "1", 1].each do |value| assert_equal true, Topic.new(approved: value).approved? end end test "custom field attribute predicate" do object = Company.find_by_sql(<<-SQL).first SELECT c1.*, c2.type as string_value, c2.rating as int_value FROM companies c1, companies c2 WHERE c1.firm_id = c2.id AND c1.id = 2 SQL assert_equal "Firm", object.string_value assert object.string_value? object.string_value = " " assert !object.string_value? assert_equal 1, object.int_value.to_i assert object.int_value? object.int_value = "0" assert !object.int_value? end test "non-attribute read and write" do topic = Topic.new assert !topic.respond_to?("mumbo") assert_raise(NoMethodError) { topic.mumbo } assert_raise(NoMethodError) { topic.mumbo = 5 } end test "undeclared attribute method does not affect respond_to? and method_missing" do topic = @target.new(title: "Budget") assert topic.respond_to?("title") assert_equal "Budget", topic.title assert !topic.respond_to?("title_hello_world") assert_raise(NoMethodError) { topic.title_hello_world } end test "declared prefixed attribute method affects respond_to? and method_missing" do topic = @target.new(title: "Budget") %w(default_ title_).each do |prefix| @target.class_eval "def #{prefix}attribute(*args) args end" @target.attribute_method_prefix prefix meth = "#{prefix}title" assert topic.respond_to?(meth) assert_equal ["title"], topic.send(meth) assert_equal ["title", "a"], topic.send(meth, "a") assert_equal ["title", 1, 2, 3], topic.send(meth, 1, 2, 3) end end test "declared suffixed attribute method affects respond_to? and method_missing" do %w(_default _title_default _it! _candidate= able?).each do |suffix| @target.class_eval "def attribute#{suffix}(*args) args end" @target.attribute_method_suffix suffix topic = @target.new(title: "Budget") meth = "title#{suffix}" assert topic.respond_to?(meth) assert_equal ["title"], topic.send(meth) assert_equal ["title", "a"], topic.send(meth, "a") assert_equal ["title", 1, 2, 3], topic.send(meth, 1, 2, 3) end end test "declared affixed attribute method affects respond_to? and method_missing" do [["mark_", "_for_update"], ["reset_", "!"], ["default_", "_value?"]].each do |prefix, suffix| @target.class_eval "def #{prefix}attribute#{suffix}(*args) args end" @target.attribute_method_affix(prefix: prefix, suffix: suffix) topic = @target.new(title: "Budget") meth = "#{prefix}title#{suffix}" assert topic.respond_to?(meth) assert_equal ["title"], topic.send(meth) assert_equal ["title", "a"], topic.send(meth, "a") assert_equal ["title", 1, 2, 3], topic.send(meth, 1, 2, 3) end end test "should unserialize attributes for frozen records" do myobj = { value1: :value2 } topic = Topic.create(content: myobj) topic.freeze assert_equal myobj, topic.content end test "typecast attribute from select to false" do Topic.create(title: "Budget") # Oracle does not support boolean expressions in SELECT. if current_adapter?(:OracleAdapter, :FbAdapter) topic = Topic.all.merge!(select: "topics.*, 0 as is_test").first else topic = Topic.all.merge!(select: "topics.*, 1=2 as is_test").first end assert !topic.is_test? end test "typecast attribute from select to true" do Topic.create(title: "Budget") # Oracle does not support boolean expressions in SELECT. if current_adapter?(:OracleAdapter, :FbAdapter) topic = Topic.all.merge!(select: "topics.*, 1 as is_test").first else topic = Topic.all.merge!(select: "topics.*, 2=2 as is_test").first end assert topic.is_test? end test "raises ActiveRecord::DangerousAttributeError when defining an AR method in a model" do %w(save create_or_update).each do |method| klass = Class.new(ActiveRecord::Base) klass.class_eval "def #{method}() 'defined #{method}' end" assert_raise ActiveRecord::DangerousAttributeError do klass.instance_method_already_implemented?(method) end end end test "converted values are returned after assignment" do developer = Developer.new(name: 1337, salary: "50000") assert_equal "50000", developer.salary_before_type_cast assert_equal 1337, developer.name_before_type_cast assert_equal 50000, developer.salary assert_equal "1337", developer.name developer.save! assert_equal 50000, developer.salary assert_equal "1337", developer.name end test "write nil to time attribute" do in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = nil assert_nil record.written_on end end test "write time to date attribute" do in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.last_read = Time.utc(2010, 1, 1, 10) assert_equal Date.civil(2010, 1, 1), record.last_read end end test "time attributes are retrieved in the current time zone" do in_time_zone "Pacific Time (US & Canada)" do utc_time = Time.utc(2008, 1, 1) record = @target.new record[:written_on] = utc_time assert_equal utc_time, record.written_on # record.written on is equal to (i.e., simultaneous with) utc_time assert_kind_of ActiveSupport::TimeWithZone, record.written_on # but is a TimeWithZone assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone # and is in the current Time.zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time # and represents time values adjusted accordingly end end test "setting a time zone-aware attribute to UTC" do in_time_zone "Pacific Time (US & Canada)" do utc_time = Time.utc(2008, 1, 1) record = @target.new record.written_on = utc_time assert_equal utc_time, record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end test "setting time zone-aware attribute in other time zone" do utc_time = Time.utc(2008, 1, 1) cst_time = utc_time.in_time_zone("Central Time (US & Canada)") in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = cst_time assert_equal utc_time, record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end test "setting time zone-aware read attribute" do utc_time = Time.utc(2008, 1, 1) cst_time = utc_time.in_time_zone("Central Time (US & Canada)") in_time_zone "Pacific Time (US & Canada)" do record = @target.create(written_on: cst_time).reload assert_equal utc_time, record[:written_on] assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record[:written_on].time_zone assert_equal Time.utc(2007, 12, 31, 16), record[:written_on].time end end test "setting time zone-aware attribute with a string" do utc_time = Time.utc(2008, 1, 1) (-11..13).each do |timezone_offset| time_string = utc_time.in_time_zone(timezone_offset).to_s in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = time_string assert_equal Time.zone.parse(time_string), record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end end test "time zone-aware attribute saved" do in_time_zone 1 do record = @target.create(written_on: "2012-02-20 10:00") record.written_on = "2012-02-20 09:00" record.save assert_equal Time.zone.local(2012, 02, 20, 9), record.reload.written_on end end test "setting a time zone-aware attribute to a blank string returns nil" do in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = " " assert_nil record.written_on assert_nil record[:written_on] end end test "setting a time zone-aware attribute interprets time zone-unaware string in time zone" do time_string = "Tue Jan 01 00:00:00 2008" (-11..13).each do |timezone_offset| in_time_zone timezone_offset do record = @target.new record.written_on = time_string assert_equal Time.zone.parse(time_string), record.written_on assert_equal ActiveSupport::TimeZone[timezone_offset], record.written_on.time_zone assert_equal Time.utc(2008, 1, 1), record.written_on.time end end end test "setting a time zone-aware datetime in the current time zone" do utc_time = Time.utc(2008, 1, 1) in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = utc_time.in_time_zone assert_equal utc_time, record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end test "YAML dumping a record with time zone-aware attribute" do in_time_zone "Pacific Time (US & Canada)" do record = Topic.new(id: 1) record.written_on = "Jan 01 00:00:00 2014" assert_equal record, YAML.load(YAML.dump(record)) end end test "setting a time zone-aware time in the current time zone" do in_time_zone "Pacific Time (US & Canada)" do record = @target.new time_string = "10:00:00" expected_time = Time.zone.parse("2000-01-01 #{time_string}") record.bonus_time = time_string assert_equal expected_time, record.bonus_time assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.bonus_time.time_zone record.bonus_time = "" assert_nil record.bonus_time end end test "setting a time zone-aware time with DST" do in_time_zone "Pacific Time (US & Canada)" do current_time = Time.zone.local(2014, 06, 15, 10) record = @target.new(bonus_time: current_time) time_before_save = record.bonus_time record.save record.reload assert_equal time_before_save, record.bonus_time assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.bonus_time.time_zone end end test "removing time zone-aware types" do with_time_zone_aware_types(:datetime) do in_time_zone "Pacific Time (US & Canada)" do record = @target.new(bonus_time: "10:00:00") expected_time = Time.utc(2000, 01, 01, 10) assert_equal expected_time, record.bonus_time assert record.bonus_time.utc? end end end test "time zone-aware attributes do not recurse infinitely on invalid values" do in_time_zone "Pacific Time (US & Canada)" do record = @target.new(bonus_time: []) assert_equal nil, record.bonus_time end end test "setting a time_zone_conversion_for_attributes should write the value on a class variable" do Topic.skip_time_zone_conversion_for_attributes = [:field_a] Minimalistic.skip_time_zone_conversion_for_attributes = [:field_b] assert_equal [:field_a], Topic.skip_time_zone_conversion_for_attributes assert_equal [:field_b], Minimalistic.skip_time_zone_conversion_for_attributes end test "attribute readers respect access control" do privatize("title") topic = @target.new(title: "The pros and cons of programming naked.") assert !topic.respond_to?(:title) exception = assert_raise(NoMethodError) { topic.title } assert_includes exception.message, "private method" assert_equal "I'm private", topic.send(:title) end test "attribute writers respect access control" do privatize("title=(value)") topic = @target.new assert !topic.respond_to?(:title=) exception = assert_raise(NoMethodError) { topic.title = "Pants" } assert_includes exception.message, "private method" topic.send(:title=, "Very large pants") end test "attribute predicates respect access control" do privatize("title?") topic = @target.new(title: "Isaac Newton's pants") assert !topic.respond_to?(:title?) exception = assert_raise(NoMethodError) { topic.title? } assert_includes exception.message, "private method" assert topic.send(:title?) end test "bulk updates respect access control" do privatize("title=(value)") assert_raise(ActiveRecord::UnknownAttributeError) { @target.new(title: "Rants about pants") } assert_raise(ActiveRecord::UnknownAttributeError) { @target.new.attributes = { title: "Ants in pants" } } end test "bulk update raises ActiveRecord::UnknownAttributeError" do error = assert_raises(ActiveRecord::UnknownAttributeError) { Topic.new(hello: "world") } assert_instance_of Topic, error.record assert_equal "hello", error.attribute assert_equal "unknown attribute 'hello' for Topic.", error.message end test "method overrides in multi-level subclasses" do klass = Class.new(Developer) do def name "dev:#{read_attribute(:name)}" end end 2.times { klass = Class.new(klass) } dev = klass.new(name: "arthurnn") dev.save! assert_equal "dev:arthurnn", dev.reload.name end test "global methods are overwritten" do klass = Class.new(ActiveRecord::Base) do self.table_name = "computers" end assert !klass.instance_method_already_implemented?(:system) computer = klass.new assert_nil computer.system end test "global methods are overwritten when subclassing" do klass = Class.new(ActiveRecord::Base) do self.abstract_class = true end subklass = Class.new(klass) do self.table_name = "computers" end assert !klass.instance_method_already_implemented?(:system) assert !subklass.instance_method_already_implemented?(:system) computer = subklass.new assert_nil computer.system end test "instance methods should be defined on the base class" do subklass = Class.new(Topic) Topic.define_attribute_methods instance = subklass.new instance.id = 5 assert_equal 5, instance.id assert subklass.method_defined?(:id), "subklass is missing id method" Topic.undefine_attribute_methods assert_equal 5, instance.id assert subklass.method_defined?(:id), "subklass is missing id method" end test "read_attribute with nil should not asplode" do assert_nil Topic.new.read_attribute(nil) end # If B < A, and A defines an accessor for 'foo', we don't want to override # that by defining a 'foo' method in the generated methods module for B. # (That module will be inserted between the two, e.g. [B, , A].) test "inherited custom accessors" do klass = new_topic_like_ar_class do self.abstract_class = true def title; "omg"; end def title=(val); self.author_name = val; end end subklass = Class.new(klass) [klass, subklass].each(&:define_attribute_methods) topic = subklass.find(1) assert_equal "omg", topic.title topic.title = "lol" assert_equal "lol", topic.author_name end test "inherited custom accessors with reserved names" do klass = Class.new(ActiveRecord::Base) do self.table_name = "computers" self.abstract_class = true def system; "omg"; end def system=(val); self.developer = val; end end subklass = Class.new(klass) [klass, subklass].each(&:define_attribute_methods) computer = subklass.find(1) assert_equal "omg", computer.system computer.developer = 99 assert_equal 99, computer.developer end test "on_the_fly_super_invokable_generated_attribute_methods_via_method_missing" do klass = new_topic_like_ar_class do def title super + "!" end end real_topic = topics(:first) assert_equal real_topic.title + "!", klass.find(real_topic.id).title end test "on-the-fly super-invokable generated attribute predicates via method_missing" do klass = new_topic_like_ar_class do def title? !super end end real_topic = topics(:first) assert_equal !real_topic.title?, klass.find(real_topic.id).title? end test "calling super when the parent does not define method raises NoMethodError" do klass = new_topic_like_ar_class do def some_method_that_is_not_on_super super end end assert_raise(NoMethodError) do klass.new.some_method_that_is_not_on_super end end test "attribute_method?" do assert @target.attribute_method?(:title) assert @target.attribute_method?(:title=) assert_not @target.attribute_method?(:wibble) end test "attribute_method? returns false if the table does not exist" do @target.table_name = "wibble" assert_not @target.attribute_method?(:title) end test "attribute_names on a new record" do model = @target.new assert_equal @target.column_names, model.attribute_names end test "attribute_names on a queried record" do model = @target.last! assert_equal @target.column_names, model.attribute_names end test "attribute_names with a custom select" do model = @target.select("id").last! assert_equal ["id"], model.attribute_names # Sanity check, make sure other columns exist. assert_not_equal ["id"], @target.column_names end test "came_from_user?" do model = @target.first assert_not model.id_came_from_user? model.id = "omg" assert model.id_came_from_user? end test "accessed_fields" do model = @target.first assert_equal [], model.accessed_fields model.title assert_equal ["title"], model.accessed_fields end private def new_topic_like_ar_class(&block) klass = Class.new(ActiveRecord::Base) do self.table_name = "topics" class_eval(&block) end assert_empty klass.generated_attribute_methods.instance_methods(false) klass end def with_time_zone_aware_types(*types) old_types = ActiveRecord::Base.time_zone_aware_types ActiveRecord::Base.time_zone_aware_types = types yield ensure ActiveRecord::Base.time_zone_aware_types = old_types end def cached_columns Topic.columns.map(&:name) end def time_related_columns_on_topic Topic.columns.select { |c| [:time, :date, :datetime, :timestamp].include?(c.type) } end def privatize(method_signature) @target.class_eval(<<-private_method, __FILE__, __LINE__ + 1) private def #{method_signature} "I'm private" end private_method end end